On Monday 16 May 2016 14:46:07 Kalle Valo wrote: [...] > Didn't openwrt have a some sort ramoops facility to collect the last > kernel logs before a crash? I don't recall the name right now but I'm > pretty sure I used it with one of our APs few years back. That might > help (or not). He can just check if /sys/kernel/debug/crashlog exists after the device crashed+rebooted. I would also be good to have CONFIG_KERNEL_KALLSYMS=y set and compile the kernel+modules with "KBUILD_CFLAGS += -fno-optimize-sibling-calls" to get a (slightly) readable calltrace on things like MIPS. Kind regards, Sven
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